let nextTodoId = 0
export const addTodo = (text) => ({
        type: 'ADD_TODO',
        id: nextTodoId++,
        text
})

export const setVisibilityFilter = (filter) => ({
        type: 'SET_VISIBILITY_FILTER',
        filter
})

export const toggleTodo = (id) => ({
        type: 'TOGGLE_TODO',
        id
})